Engine Room Pumps. Model C2G. Pump Systems

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1 Engine Room Pumps Model C2G Pump Systems

2 C2G centrifugal pumps Hamworthy has more than 100 years experience in design and manufacturing of centrifugal pumps for the marine industry. Following the great success of the renowned Eureka and Dolphin centrifugal pump series, Hamworthy s continued research and development has led to the introduction of a new series of pumps to better serve the shipping industry, both in terms of operational costs and hydraulic efficiency. With the use of CD technology and the most advanced Laminated Object Manufacturing machine for pattern making, Hamworthy has successfully developed a new series, the C2G model centrifugal pumps for marine application. The range covers all duties onboard sea-going vessels. Design Minimum number of parts to facilitate ease of assembly and disassembly during maintenance. High degree of standardisation of components for low inventory and effective spare parts distribution. Compact design for ease of installation, retrofit and optimal engine room layout. Casing Computer generated pump volutes for best hydraulic efficiency Integral pump foot on casing Impeller Single suction, designed with low NPSHr. Bearing Stout angular contact bearings for longer life. Seal C2G cooling pumps installed onboard, Color Line s Color Fantasy Seal bearing assembly with mechanical seal ensures long service life. 2

3 Build flexibility Spacer Coupled The standard build of the C2G is the spacer coupled version. The spacer coupled pumps offer the advantage of easy maintenance without the need to remove the driving motor. Includes the seal bearing assembly. Close Coupled The close coupled solution provides an economic and compact alternative to the spacer coupled version. Simple and robust design. Most compact dimensions in the market. Dismantling of close coupled pump entails removing the motor to permit access to the pump rotor. Seal bearing assembly The innovative seal bearing assembly offers unmatched value for the marine pump user. Benefits include: Easy and fast overhaul of pump during service downtime. Standardisation of sizes gives user minimum number of spare parts stock. With the seal bearing assembly the ball bearing is located ideally within the pump. Patented design ensures quality for the end user. 3

4 Innovative new C2G pump The new C2G pump is a single-suction inline centrifugal pump, designed for a reliable and efficient operation. The compact design of the pump gives low weights of parts to be handled. The pump has both high suction performance and a low power requirement. Motor Couping Material Mild Steel Spacer Coupling Material Nodular Cast Iron. The rotor unit can be removed without removal of the motor pedestal. Pump Coupling Material - High Strength Cast Iron. Motor Pedastal Material Cast Iron. The Motor pedestal is designed with large openings for easy dismantling of rotor unit. Seal Bearing ssembly The patented Seal-Bearing ssembly incorporates a mechanical seal and a angular contact ball bearing in one unit. Pump Cover Material Nickel luminium Bronze. When disassembling the pump, the pump cover comes out as a unit together with the impeller. Pump Casing Material Cast Bronze or Cast Iron. Wear Ring Material - Bronze. Replaceable wear rings. impeller Material Nickel luminium Bronze. The Impeller is optimised for high efficiency and low NPSH. Pump design The C2G design is optimised for low NPSH and good cavitation resistance. From the large size suction inlet flange, through the flow passages on the impeller inlet, the utmost care is taken to ensure low-loss flow conditions. 4

5 Construction code C2G 150 L B L B N Pump Type Basic Pump Size Pressure Class L M H Low Medium High Pump Build B C D X P Q Spacer Coupled to Prime Mover Close Coupled to Prime Mover Motor Pedastal M L S Medium Motor Variant Large Motor Variant Small Motor Variant Casing Material B F Ni-l Bronze Bronze Cast Iron Impeller Material S Ni-l Bronze Stainless Steel Seal Face Materials N V Carbon - Ceramic Silicon Carbide - Silcon Carbide 5

6 Capacity range The C2G range of engine room pumps has three pressure classes and a large number of pump sizes to make a good selection for customer requirements H 80H 100H 125H 150H 200H H (m) M 125M 150M 200M 250M 300M 400M 50L 65L 80L 100L 125L 150L 200L 250L 300L 400L Q (m 3 /h) Material List Item Material Sea Water pplication Fresh Water pplication Pump Casing Bronze Cast Iron Nickel luminium Bronze Pump Cover Nickel luminium Bronze Cast Iron Impeller Nickel luminium Bronze Nickel luminium Bronze Stainless Steel Stainless Steel Wear Ring Bronze Pump Coupling Nodular Cast Iron Spacer Coupling Nodular Cast Iron Seal Bearing ssembly Motor Pedastal Stainless Steel ngular Contacts Bearings with Mechanical Seal Cast Iron 6

7 B C Outline Dimensions D LOW PRESSURE Pump size Flanges according to Dimensions (mm) ISO 7005 PN10 or JIS B K Discharge flange Suction flange B C D C2G - 50L C2G - 65L C2G - 80L C2G - 100L C2G - 125LB C2G - 150LB C2G - 200LB C2G - 250LC C2G - 300LD C2G - 400LD MEDIUM PRESSURE Pump size Flanges according to Dimensions (mm) ISO 7005 PN10 or JIS B K Discharge flange Suction flange B C D C2G - 100MX C2G - 125MB C2G - 150MB C2G - 200MC C2G - 250MC C2G - 300MD C2G - 400MD HIGH PRESSURE Pump size Flanges according to Dimensions (mm) ISO 7005 PN16 or JIS B K Discharge flange Suction flange B C D C2G - 65HX C2G - 80HX C2G - 100HB C2G - 125HB C2G - 150HC C2G - 200HC

8 Hamworthy Pte. Ltd 15 Benoi Crescent, Jurong, Singapore tel: fax: Hamworthy Pump Systems S Solbraaveien 10, PO box 53 NO-1371 sker, Norway Enterprise No: tel: fax: pumpinfo@hamworthy.com Hamworthy Pump Systems Fleets Corner, Poole Dorset BH17 0JT England tel: +44 (0) fax: +44 (0) poolepumps@hamworthy.com The manufacturers reserve the right to alter the specification and data to incorporate improvements in design. Certified drawings will be issued on request. ll details copyright Hamworthy plc. Subsidiaries of Hamworthy plc website: ref: HL /5